Pneumatic tire.



F. RICHARDSON.

, 4FNUMI'IC TIRE.

APPLICATION FILED JUNE 22. 1907.

Patented Dec. 1, 1908.

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WTTNIEEEE.' INVENZ'DE F.. RICHARDSON. PNEUMATIG TIRE.

AAPPLIUA'TION `FILED JUNE 22. 1907. Dc- 1 .rig-.1?. rig-.5.

WITNEEEE.' IN vENz-UE: ha Qyf- FRE-DEREK RICHARDSON, .OF PRpVIDENCE,-RHODE ISLAND.

PNEUMATIC TIRE;

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application manne 22, 1907. serial iis-'asoma To all whom 'it may concern:

Beit .known that I, FREDERICK RICHARD-` sON, a citizen of the United States,residing at Providence, .in the county of Providence .and State of Rhode Island, have invented a new and useful Improvement in Pneumatic Tires, of which the following is a specification.

This 'invention has reference to an improvement in pneumatic tires and more particularly to an im rovement in a puncture proof and non-ski ding tread or armor for pneumatic tires.

The object of in invention is to improve the construction o pneumatic tires for au-4 tomobiles and other road vehicles whereby skidding or side slipping of the tireis prevented, the tread of the tire protected against punctures, and traction wear on the tire reduced .to a minimum.

My invention consists in the peculiar and novel construction of a flexible non-skidding and puncture proof tread for pneumatic tires, said tread comprising a plurality of metal plates, each plate having an4 outwardly-extending central boss, lateral lips, a transverse opening and a longitudinal vrecess in its under side and held in position by a transverse strip of fabric .through the transverse opening and a longitudinal strip of fabric in the longitudinal recess, the whole forming an integral partof the tire or in the form of a shoe mechanically secured to the tire and having details of construction, as will be more fully set forth hereinafter and claimed.

Figure 1 is a face view of a portion of a pneumatic ti're having my improved flexible non-skidding and puncture proof tread.

Fig. 2 is a face View similar to Fig..1,show ing the outer face. of the tire removed to show the construction of the tread. -Fi .B is an enlarged detail sectional View ta en lengthwise through the tread of the tire. Fig. 4 is a transverse sectional view through a wheel rim and detachable tire, showing my improved tread formed integral with the tire. Fig. 5 isAa transverse sectional view through a Wheel rim and single tube tire showing the tread in the form of a shoe detachably secured to thetire. Fig. vGis an enlarged detail .face view of one of the plates, showing a portion of the transverse and longitudinal fastenings'trips. Figi? is i an enlarged detail view similar to'Fi 6 lookin at the under surface of the p ate. Fig. 8 1s an enlarged erspectiveview of the plate. Fig. 9 is an en arged'ldetaillface vlew of a modified Vform of plate showing the plates s read longitudinally andthe interstices lillhd'with transverse strips of-rubber. Fig. 10 .is an enlarged face View similar to Fig. 9, showing the transverse strips of rubberremoved, and .11 is anvenlarged perspective view of the modified form of plate.

In the drawings, a indicates a wheel rim, b a detachable form of pneumatic tire, c my improved flexible non-skidding and Apuncture proof tread, d a single tube form of.

pneumatic tire, and e a detachableshoe haw ing my improved tread.

My improved flexible non-skidding v.and puncture-proof treads consists of .a plurality of square metal plates 12 12, each plate having .the outwardly-extending `central boss 13, theilateral lips -14 14, thethin transverse ,opening .15, and the thin longitudinal recess 16 in the underside of the plate, `as shown in Fig. 8. The plates are securely held on the face of the tire in three annular parallel rows by transverse strips 17 .17 constructed preferably of fabric impregnated with or coated with rubber, each transverse strip passin through the transverse openings 15 15 o threeof the plates and the ends of the strips embedded in the tube,.a,s shown in Fig. 4, and by .three longitudinal strips 18 18 18 passing through the recesses 16 16 in each annular row ofplates and cemented to the transverse strips 17 17 in the-transverseo enings 15 15 and to the faceof the tire. he plates 12 V12 are now held in close contact with each other and from longitudinal movement by thetransverse strips 17 17 and from side movement by thellongivtudinal strips 18 .18. 4The .lon itudinalor annular grooves between the p ates formed by the lateral lips 14 14 on the plates are filled by longitudinal strips 19 19 of rubber,

`thereby r'forming a flexible non-skiddingand puncture proof tread of metal and rubber, which when the tire is vulcanized, forms an integral part of the tire.

In the form shown in Fig. 5. my improved tread is formed as described integral with a-.shoe e which is detachably secured to the tire 4 by ,transverse straps and'buclles or other well known means.

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In the Vmodified fornifof late, as shown in Figs. 9,10 and 11, the p ates 1212 each have in addition the end-lips 20 20 formlng transverse grooves between the plates .Which sillency, is puncture proof, skidding'or side` slipping is prevented,the traction of the tire is improved and the life of the tire greatly increased. v

In the preferred form the plates 12 l2 are constructed to forma flat tread, as shown in Figs. l4 and 5. It is evident that the plates could be constructed to form a curved or roundtread if desired and lany number of annular rows of plates may be used without materially aecting the spirit ofA my invention.

Having thus described my invention,v I claim as new and desire to secure by Letters Patent;-.

1. In a pneumatic tire, av protecting armor consisting of a plurality of metal plates havin lateral extensions secured 'to the tread y longitudinal and transverse strips of fabric cemented to the tire.

- 2. In a pneumatic tire, a metal and rubber non-skidding and puncture proof tread consisting of a plurality of metal plates having lateral lips and secured to the face of the tire by transverse and longitudinal strips of fabric and longitudinal strips of rubber in the grooves formed by the lateral lips on the plates.

3. A pneumatic tire protection consisting cfa plurality of metal plates having transverse recesses on the undersides with lateral extensions for securing them to the face of the tire by longitudinal and transverse strips of fabric, as described.

4. In apneumatic t'ire, a nonskidding and puncture proof ltread consisting of a plurality of metal plates having outwardlyextending bosses and secured to the face of the tire by transverse strips of fabric extending through openings in the plates and embedded in the tire.

5. vIn a pneumatic tire, a non-skidding and puncture proof tread consisting of a plurality of metal plates secured to the face of the tire by transverse strips of fabric eX- tending through openings in the plates and embedded in the tire, and mans for preventing said movement of the plates comprising longitudinal strips of fabric extending through recesses in the under surface of the plates.

6. In a pneumatic tire, a metal and rubber non-skidding and puncture proof tread consisting of a plurality of metal plates each plate having sacentral. boss, lateral lips, a transverse opening and a recess in the under vside --and securedv to the face of the tire againstlongitudinal movement by a transverse strip of fabric extending through the opening in the plate and' embedded in the tire and against side movement by a longi tudinal strip of fabric extendingv through the recess in the under side of the plate and strips of rubber in the grooves formed by the lateral lips on the plates.

7. In a pneumatic tire, a metal and rubber non-skid'ding and puncture proof tread consisting of a substratum of rubber, a plurality of metal plates havinglateral lips, a transverse opening and a longitudinal recess in the under side and secured to the face of the substratum of rubber in annular parallel rows and against longitudinal movement by a transverse strip of rubber impregnated fabric extending through the opening in the late and embedded in the substratum of ru ber and against side movement by a longitudinal strlp of rubber impregnated fabric extending through the recess in the under side of the plate, strips of rubber inthe grooves formed by the lateral lips on the plates, and means of forming the substratum of rubber with the tread, integral With the tire, consisting of vulcanizing the substratum of rubber to the face of the tire.

8. In a pneumatic tire, a metal and rubber non-skiddlng and puncture proof tread consisting of a substratum of rubber in the form of a tire shoeJ a pluralityof metal plates each plate having a central boss, lateral lips, a transverse opening and a longitudinal recess inthe underside and secured to the face of the shoe in annular parallel rows and against longitudinal movement by transverse strips of rubber coated fabric extending through the openings in the plates and embedded in the shoe and against side movenient by longitudinal strips of rubber coated fabric extending through the' recesses in the under side of the plates, strips of rubber in the grooves formed by the lateral lips on .the plates, and means for detachably securing the shoe with the tread to the tire.

9. In a pneumatic tire, a non-skidding and puncture proof tread consisting of a vplurality of metal plates 12 12, each plate having a central boss 13, the lateral lips 14 '14, a transverse opening 15 and a longif under side of the tudinal recess 16 in the plate, and means forv securing the plates -to the face`of the tire against sidewise and longitudinal movement, as described.

10. In a pneumatic tire, and puncture proof tread consisting of a plurality of metal plates 12 12, each plate having a central boss 13, the lateral lips 14' 14, a transverse opening 15, a longitudinal reahnon skidding cess l and the end lips 20, means for securname to this specification in the presence of ing the plats fo the lie; 1of the tire agains two subscribing witnesses'. sidewise an o itu a movements, an w means forillingnhe grooves formed by the l FREDERICK RIQHARDSON' 5 end lips 2U 20 consisting of strips of rub- Witnesses:

ber in the grooves, las described. ADA E. HAGERTY,

vIn testimony whereof I have signed my J. A. MILLER.I 

